Season 27 will be starting on the following dates/times:
North America: Friday, August 26 @ 5:00pm PT
NSW/Vic/Qld/Tas/ACT: Saturday, August 27 @ 10am
SA/NT: Saturday, August 27 @ 9:30am
WA: Saturday, August 27 @ 8am
NZ: Saturday, August 27 @ 12pm
https://us.diablo3.blizzard.com/en-us/blog/23816414/season-27-light%E2%80%99s-calling-preview-8-15-2022